Question

i. What is a right- angled triangle? How can it be identified?

Answer 1

Answer:

Step-by-step explanation:

A right triangle or right-angled triangle is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse. The sides adjacent to the right angle are called legs. The hypotenuse is the longest side.

Identification: (side 1)^2+(side 2)^2=(hypotenuse)^2

Hope that helped:)

Answer 2

Answer:

Step-by-step explanation:

A right angle triangle ia a triangle in which one angle is 90° angle and other two angles should be acute angle. The sum of two other angles should be 180°.

It can be identified if one angle is 90° and sum of two angles is 180° but these two angles should be acute or less than 90°.